Booty Cleavage 

\'bü-tç-'klç-vij\ (noun) 1. The perpendicular measurement downward to describe the depth of butt-crack (female specific).

Guy 1: "Yo' man...dat ho have got sum serious booty cleavage man. Ima' hollah at her!"
Guy 2: "Word!"

Booty Cleavage by Beendetos March 24, 2008

Booty Cleavage 

Booty cleavage is just like regular cleavage, but for the butt. Its normally used when a girl (preferably) bends over and her crack is showing or when a girl's pants are so tight you can see the line goin down her ass.

Don't nobody wanna see yo nasty booty cleavage...

Booty Cleavage by Timmie 2010 March 25, 2008

Bleavage [booty][cleavage]

Or Butt Cleavage. Usually occurs when women wearing low-rise pants bend over or sometimes while seated.

Bleavage bootycleavage
Did you see that girl bending over? She was rocking some bleavage.

Bleavage [booty][cleavage] by spare201 January 10, 2009